mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
279 lines
9.1 KiB
C++
279 lines
9.1 KiB
C++
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/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Unit tests for the solidity expression compiler, testing the behaviour of the code.
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*/
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#include <string>
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#include <boost/test/unit_test.hpp>
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#include <libethereum/State.h>
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#include <libethereum/Executive.h>
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#include <libsolidity/CompilerStack.h>
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using namespace std;
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namespace dev
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{
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namespace solidity
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{
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namespace test
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{
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class ExecutionFramework
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{
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public:
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ExecutionFramework() { g_logVerbosity = 0; }
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bytes compileAndRun(std::string const& _sourceCode)
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{
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bytes code = dev::solidity::CompilerStack::compile(_sourceCode);
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sendMessage(code, true);
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return m_output;
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}
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bytes callFunction(byte _index, bytes const& _data)
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{
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sendMessage(bytes(1, _index) + _data, false);
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return m_output;
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}
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bytes callFunction(byte _index, u256 const& _argument1)
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{
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callFunction(_index, toBigEndian(_argument1));
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return m_output;
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}
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private:
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void sendMessage(bytes const& _data, bool _isCreation)
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{
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eth::Executive executive(m_state);
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eth::Transaction t = _isCreation ? eth::Transaction(0, m_gasPrice, m_gas, _data)
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: eth::Transaction(0, m_gasPrice, m_gas, m_contractAddress, _data);
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bytes transactionRLP = t.rlp();
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try
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{
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// this will throw since the transaction is invalid, but it should nevertheless store the transaction
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executive.setup(&transactionRLP);
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}
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catch (...) {}
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if (_isCreation)
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{
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BOOST_REQUIRE(!executive.create(Address(), 0, m_gasPrice, m_gas, &_data, Address()));
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m_contractAddress = executive.newAddress();
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BOOST_REQUIRE(m_state.addressHasCode(m_contractAddress));
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}
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else
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BOOST_REQUIRE(!executive.call(m_contractAddress, Address(), 0, m_gasPrice, &_data, m_gas, Address()));
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BOOST_REQUIRE(executive.go());
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executive.finalize();
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m_output = executive.out().toBytes();
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}
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Address m_contractAddress;
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eth::State m_state;
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u256 const m_gasPrice = 100 * eth::szabo;
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u256 const m_gas = 1000000;
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bytes m_output;
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};
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BOOST_AUTO_TEST_SUITE(SolidityCompilerEndToEndTest)
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BOOST_AUTO_TEST_CASE(smoke_test)
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{
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char const* sourceCode = "contract test {\n"
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" function f(uint a) returns(uint d) { return a * 7; }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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u256 a = 0x200030004;
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bytes result = framework.callFunction(0, a);
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BOOST_CHECK(result == toBigEndian(a * 7));
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}
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BOOST_AUTO_TEST_CASE(empty_contract)
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{
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char const* sourceCode = "contract test {\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, bytes()).empty());
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}
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BOOST_AUTO_TEST_CASE(recursive_calls)
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{
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char const* sourceCode = "contract test {\n"
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" function f(uint n) returns(uint nfac) {\n"
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" if (n <= 1) return 1;\n"
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" else return n * f(n - 1);\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, u256(0)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(0, u256(1)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(0, u256(2)) == toBigEndian(u256(2)));
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BOOST_CHECK(framework.callFunction(0, u256(3)) == toBigEndian(u256(6)));
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BOOST_CHECK(framework.callFunction(0, u256(4)) == toBigEndian(u256(24)));
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}
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BOOST_AUTO_TEST_CASE(while_loop)
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{
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char const* sourceCode = "contract test {\n"
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" function f(uint n) returns(uint nfac) {\n"
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" nfac = 1;\n"
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" var i = 2;\n"
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" while (i <= n) nfac *= i++;\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, u256(0)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(0, u256(1)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(0, u256(2)) == toBigEndian(u256(2)));
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BOOST_CHECK(framework.callFunction(0, u256(3)) == toBigEndian(u256(6)));
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BOOST_CHECK(framework.callFunction(0, u256(4)) == toBigEndian(u256(24)));
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}
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BOOST_AUTO_TEST_CASE(break_outside_loop)
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{
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// break and continue outside loops should be simply ignored
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char const* sourceCode = "contract test {\n"
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" function f(uint x) returns(uint y) {\n"
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" break; continue; return 2;\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, u256(0)) == toBigEndian(u256(2)));
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}
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BOOST_AUTO_TEST_CASE(nested_loops)
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{
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// tests that break and continue statements in nested loops jump to the correct place
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char const* sourceCode = "contract test {\n"
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" function f(uint x) returns(uint y) {\n"
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" while (x > 1) {\n"
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" if (x == 10) break;\n"
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" while (x > 5) {\n"
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" if (x == 8) break;\n"
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" x--;\n"
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" if (x == 6) continue;\n"
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" return x;\n"
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" }\n"
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" x--;\n"
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" if (x == 3) continue;\n"
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" break;\n"
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" }\n"
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" return x;\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, u256(0)) == toBigEndian(u256(0)));
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BOOST_CHECK(framework.callFunction(0, u256(1)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(0, u256(2)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(0, u256(3)) == toBigEndian(u256(2)));
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BOOST_CHECK(framework.callFunction(0, u256(4)) == toBigEndian(u256(2)));
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BOOST_CHECK(framework.callFunction(0, u256(5)) == toBigEndian(u256(4)));
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BOOST_CHECK(framework.callFunction(0, u256(6)) == toBigEndian(u256(5)));
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BOOST_CHECK(framework.callFunction(0, u256(7)) == toBigEndian(u256(5)));
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BOOST_CHECK(framework.callFunction(0, u256(8)) == toBigEndian(u256(7)));
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BOOST_CHECK(framework.callFunction(0, u256(9)) == toBigEndian(u256(8)));
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BOOST_CHECK(framework.callFunction(0, u256(10)) == toBigEndian(u256(10)));
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BOOST_CHECK(framework.callFunction(0, u256(11)) == toBigEndian(u256(10)));
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}
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BOOST_AUTO_TEST_CASE(calling_other_functions)
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{
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// note that the index of a function is its index in the sorted sequence of functions
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char const* sourceCode = "contract collatz {\n"
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" function run(uint x) returns(uint y) {\n"
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" while ((y = x) > 1) {\n"
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" if (x % 2 == 0) x = evenStep(x);\n"
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" else x = oddStep(x);\n"
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" }\n"
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" }\n"
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" function evenStep(uint x) returns(uint y) {\n"
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" return x / 2;\n"
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" }\n"
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" function oddStep(uint x) returns(uint y) {\n"
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" return 3 * x + 1;\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(2, u256(0)) == toBigEndian(u256(0)));
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BOOST_CHECK(framework.callFunction(2, u256(1)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(2, u256(2)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(2, u256(8)) == toBigEndian(u256(1)));
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BOOST_CHECK(framework.callFunction(2, u256(127)) == toBigEndian(u256(1)));
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}
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BOOST_AUTO_TEST_CASE(many_local_variables)
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{
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char const* sourceCode = "contract test {\n"
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" function run(uint x1, uint x2, uint x3) returns(uint y) {\n"
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" var a = 0x1; var b = 0x10; var c = 0x100;\n"
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" y = a + b + c + x1 + x2 + x3;\n"
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" y += b + x2;\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, toBigEndian(u256(0x1000)) + toBigEndian(u256(0x10000)) + toBigEndian(u256(0x100000)))
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== toBigEndian(u256(0x121121)));
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}
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BOOST_AUTO_TEST_CASE(multiple_return_values)
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{
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char const* sourceCode = "contract test {\n"
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" function run(bool x1, uint x2) returns(uint y1, bool y2, uint y3) {\n"
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" y1 = x2; y2 = x1;\n"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, bytes(1, 1) + toBigEndian(u256(0xcd)))
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== toBigEndian(u256(0xcd)) + bytes(1, 1) + toBigEndian(u256(0)));
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}
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BOOST_AUTO_TEST_CASE(short_circuiting)
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{
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char const* sourceCode = "contract test {\n"
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" function run(uint x) returns(uint y) {\n"
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" x == 0 || ((x = 8) > 0);\n"
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" return x;"
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" }\n"
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"}\n";
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ExecutionFramework framework;
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framework.compileAndRun(sourceCode);
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BOOST_CHECK(framework.callFunction(0, u256(0)) == toBigEndian(u256(0)));
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BOOST_CHECK(framework.callFunction(0, u256(1)) == toBigEndian(u256(8)));
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}
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//@todo test smaller types
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BOOST_AUTO_TEST_SUITE_END()
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}
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}
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} // end namespaces
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